David Garret Kerr was an American mining engineer.
[1] He rose from lab technician to Vice President.
[2] Kerr is considered influential because, in 1880, he was sent to Sweden, to study and bring back, techniques for preparing "spiegeleisen", a key ingredient in newly developed Swedish steels.
[1] US Steel made him its Vice President in charge of the production and distribution of ore, limestone and coal, in 1909.
His alma mater, Lehigh University, granted him an honorary degree, in 1933.